package jwj8508.j2ee.basic.projectv7.dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

import jwj8508.j2ee.basic.projectv5.model.BoardVO;
import jwj8508.j2ee.basic.util.jdbc.MariaDB;

public class BoardDAO extends jwj8508.j2ee.basic.projectv5.dao.BoardDAO {
	protected static int perPage = 20;	// 페이지당 게시물 수
	private static String pagingSQL = "select bdno, title, uid, wdate, reades from boardv4"
									+ " order by bdno desc limit ?, ?";
	protected static String totalSQL = "select count(bdno) from boardv4";
	
	public static List<BoardVO> listBoard(int startno) {
		Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		List<BoardVO> result = new ArrayList<>();
		
		try {
			conn = MariaDB.openCPConn();
			pstmt = conn.prepareStatement(pagingSQL);
			pstmt.setInt(1, startno);
			pstmt.setInt(2, perPage);
			rs = pstmt.executeQuery();			
			while (rs.next()){	
				BoardVO b = new BoardVO();
				b.setBdno(rs.getString(1));
				b.setTitle(rs.getString(2));
				b.setUid(rs.getString(3));
				b.setWdate(rs.getString(4));
				b.setReades(rs.getString(5));
				result.add(b);
			}			
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			MariaDB.closeConn(conn, pstmt, rs);
		}
		
		return result;
	}
	
	public static int totalBoard() {
		Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		int result = 0;
		
		try{
			conn = MariaDB.openCPConn();
			pstmt = conn.prepareStatement(totalSQL);
			rs = pstmt.executeQuery();
			if (rs.next()) result = rs.getInt(1);			
		} catch (Exception ex) {
			ex.printStackTrace();
		} finally {
			MariaDB.closeConn(conn, pstmt, rs);
		}

		return result;
	}
	
}
